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Post-Lab Questions
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1
Which of the following membrane movements pertains primarily to water movements through a selectively permeable membrane?
A)osmosis
B)diffusion
C)active transport
D)filtration
2
A crystal of potassium permanganate is placed into a beaker of water. The next day, the solid color is gone, but the water is evenly colored. This is an example of
A)osmosis.
B)diffusion.
C)active transport.
D)filtration.
3
If human red blood cells were placed in a ______ solution, the size of the cell would remain unchanged.
A)0.9% NaCl
B)3% NaCl
C)3% glucose
D)0.9% glucose
4
If a cell is placed in a hypotonic solution, the net movement of water would be
A)into the cell.
B)out of the cell.
C)equal movement into and out of the cell.
D)no net movement.
5
If a human red blood cell is placed in a 5% NaCl solution, the cell would
A)remain unchanged.
B)swell.
C)shrink.
D)swell and burst.





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